Improvement in lamps



R. s. MERRILL.

Lam-p. Y I NNo. 104,481. Patented-1mm, 1870.

UNITEDA STATES RUFUS S. MERRILL, OF HYDE PARK, ASSIGNOR TO HIMSELF, W. B. MERRILL,

PATENT trice.

AND JOSHUA MERRILL, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN LAMPS.

To all whomt't may concern:

Be it known that I, Bonus SPAULDING i MERRILL, of Hyde Park, in the county of Nors which the burner is placed by the side of and `at a distance from the oil-reservoir, and is connected with the same by a supply-pipe, through whichthe oil from the reservoirvpasses to the burner; and my invention consists, rst, in the combination, with the `oil foundation or reservoir, of a tubular socket which is secured to and opens into the top of the fountain, and serves both to receive and hold the stem of the shade-rest and to ventilate the lamp and allow the oil to pass readily from the fountain to the burner; second, in the employment for the purpose of attaching the burner supplypipe to the fountain of a cast-metal socketpiece constructed and held to the under side of the fountain in the manner hereinafter described; third, in the combination, with the cast-metal socket, of a cast-metal connection and supply-pipe and a cast-metal socket-piece to which the said pipe, the burner, and drip cup are attached, as hereinafter stated.

The nature of my invention will be readily understood by reference to the accompanying drawings, in which-- Figure 1 is a vertical central section through the oil-reservoir, burner, and connecting-pipe. Fig. 2 is a plan view ot' the bottom of the reslervoir.

The lamp is adapted to slide up and down upon a supporting-spindle, A, which is arranged to pass axially through the oil reser- Voir or fountain B, as shown in Fig. 1.

The iilling nozzle or opening, closed bya screw or other suitable cap, as shown, is proticient air to enter the reservoir to take the place ot' the oil as the latter passes to the burner, so that the feed may take place easily and without interruption. The socket is secured to the fountain by means of a plate, c, which fits around that portion of the socket which projects into the fountain and is pressed up closely against the under side of the top, where it is solderedto the socket' and to the top. This flange or holding-plate stitt'ens the thin sheet metal of which the top is'composed and gives it strength to properly uphold the shade-rest and affords a secure means for fastening the socket in place.

To the under side of the fountain I attach a metallic socket, d, having a male screw at c and a female screw atf. The end eis inserted in an opening, g, cut for it in the fountain, and is then held by a nut, h, which is screwed down upon it on the inside of the reservoir. Solder is then applied to make the joint perfectly tight. At the pointwhere the socket is attached to the bottom of the reservoir I prefer to form a depression, z', in which the nut h is held, and which also serves materially to stiften transversely the bottom of the reservoir, to enable it to resist without buckling or bending the strain to which it is subjected in supporting the weight of the projecting burner and connecting-pipe. Into the part j' of the socket the cast1metal connecting-pipe 7c is screwed and then soldered, and at its outer end it is screwed and soldered into the burner socketpiece l, which is also made of cast metal, and carries on its lower endl the drip-cup m and on its upper end the wick-tube and exterior burner-supporting tube, the latter fitting in a seat formed for it near the top ot' the socketvpiece and the former secured in the socket lower down and `so as to communicate with the supply-pipe in the usual manner.

By making the parts d 7c Z of cast metal and constructing and 'uniting them in the manner described this portion of thelamp is made most solid and durable and much more ornamental than would otherwise be practicable, while it can be produced at little expense.

Having now described my invention and the manner inwhich the same is or may be carried into effect, what I claim, and desire to secure by Letters Patent, is-

1. The combination, with the oil-reservoir, ofa tubular socket fixed to the top of and opening into the same, so as to hold the shade-rest and allow air to enter the reservoir, as set forth.

2. Securing the shade-rest socket to the top of the oil-reservoir by means of a holding plate or disk fitting the inner end of the socket and applied and h'xed to the under side of the top of the reservoir, as and for the purposes set forth.

3. rlhe combination, with the fountain, of a cast-metal socket constructed to receive the end of the supply-pipe and secured to the bot tom of the fountain by means of a screw-nut and solder, substantially as shown and set forth.

4. The combination, with the fountain and cast-metal socket attached to the bottom of the same, of the cast-metal connection or sup- RUFUS' S. ME RRILTI.

Witnesses W. BAILEY, EDM. F. BROWN. 

